ARTS built-in documentation server
Workspace Method sunsAddSingleFromGridAtLocation
Description
Extracts a sun spectrum measured at the given location
adds it to suns.
The method allows to obtain the sun spectrum by
interpolation from a field of such data.
The sun spectrum is expected to be stored as
irradiance.
It is coverted to the irradiance at the suns photosphere.
Unit: GriddedField2: [W m-2 Hz-1]
Vector f_grid[Hz]
Vector stokes_dim[1]
Dimensions: [f_grid, stokes_dim]
This method performs an interpolation onto the f_grid.
The point of f_grid that are outside the data frequency grid
are initialized according to planck's law of the temperature variable.
Hence, a temperature of 0 means 0s the edges of the f_grid.
Authors: Jon Petersen
Synopsis
| sunsAddSingleFromGridAtLocation( | suns, suns_do, f_grid, stokes_dim, refellipsoid, sun_spectrum_raw, radius, distance, temperature, zenith, azimuth, description, location_latitude, location_longitude, location_altitude ) |
Variables
| OUT+IN | suns | (ArrayOfSun) | Array of Sun. |
| OUT | suns_do | (Index) | Flag to activate the sun(s). |
| IN | f_grid | (Vector) | The frequency grid for monochromatic pencil beam calculations. |
| IN | stokes_dim | (Index) | The dimensionality of the Stokes vector (1-4). |
| IN | refellipsoid | (Vector) | Reference ellipsoid. |
| GIN | sun_spectrum_raw | (GriddedField2) | Raw data for monochromatic irradiance spectra.
|
| GIN | radius | (Numeric, Default: 6.963242e8) | The radius of the sun in meter.
Default is the radius of our Sun.
|
| GIN | distance | (Numeric, Default: 1.495978707e11) | The distance between the location and the
center of the sun in meter.
Default value is set to 1 a.u.
|
| GIN | temperature | (Numeric, Default: -1) | The temperature of the padding if the f_grid is outside the
sun spectrum data. Choose 0 for 0 at the edges or a effective
temperature for a padding using plack's law.
|
| GIN | zenith | (Numeric, Default: 0) | Zenith angle of the sun in the sky.
|
| GIN | azimuth | (Numeric, Default: 0) | Azimuthal angle of the sun in the sky.
|
| GIN | description | (String, Default: "Sun spectrum from Griddedfield.") | The description of the sun.
|
| GIN | location_latitude | (Numeric, Default: 0) | The latitude of the sun spectrum measurement.
|
| GIN | location_longitude | (Numeric, Default: 0) | The longitude of the sun spectrum measurement.
|
| GIN | location_altitude | (Numeric, Default: 1e5) | The altitude of the sun spectrum measurement.
|